Histology Testbank: Blood Vessels 2

Instructions: For each histology question, pick the one best answer. This histology test bank is also useful for the histology questions on the USMLE (USMLE step 1). Click here for answers and detailed explanations.

1.
Which layer in an artery is primarily smooth muscle?
a. Tunica intima
b. Tunica media
c. Tunica externa
d. All of the above
e. None of the above